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Title: Precision metrology of NSTX surfaces using coherent laser radar ranging

Abstract

A frequency modulated Coherent Laser Radar ranging diagnostic is being used on the National Spherical Torus Experiment (NSTX) for precision metrology. The distance (range) between the 1.5 {micro}m laser source and the target is measured by the shift in frequency of the linearly modulated beam reflected off the target. The range can be measured to a precision of < 100{micro}m at distances of up to 22 meters. A description is given of the geometry and procedure for measuring NSTX interior and exterior surfaces during open vessel conditions, and the results of measurements are elaborated.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
758241
Report Number(s):
PPPL-3467
TRN: US0003839
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 13 Jul 2000
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NSTX DEVICE; OPTICAL RADAR; LASER RADIATION; ALIGNMENT

Citation Formats

H.W. Kugel, D. Loesser, A. L. Roquemore, M. M. Menon, and R. E. Barry. Precision metrology of NSTX surfaces using coherent laser radar ranging. United States: N. p., 2000. Web. doi:10.2172/758241.
H.W. Kugel, D. Loesser, A. L. Roquemore, M. M. Menon, & R. E. Barry. Precision metrology of NSTX surfaces using coherent laser radar ranging. United States. doi:10.2172/758241.
H.W. Kugel, D. Loesser, A. L. Roquemore, M. M. Menon, and R. E. Barry. Thu . "Precision metrology of NSTX surfaces using coherent laser radar ranging". United States. doi:10.2172/758241. https://www.osti.gov/servlets/purl/758241.
@article{osti_758241,
title = {Precision metrology of NSTX surfaces using coherent laser radar ranging},
author = {H.W. Kugel and D. Loesser and A. L. Roquemore and M. M. Menon and R. E. Barry},
abstractNote = {A frequency modulated Coherent Laser Radar ranging diagnostic is being used on the National Spherical Torus Experiment (NSTX) for precision metrology. The distance (range) between the 1.5 {micro}m laser source and the target is measured by the shift in frequency of the linearly modulated beam reflected off the target. The range can be measured to a precision of < 100{micro}m at distances of up to 22 meters. A description is given of the geometry and procedure for measuring NSTX interior and exterior surfaces during open vessel conditions, and the results of measurements are elaborated.},
doi = {10.2172/758241},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 13 00:00:00 EDT 2000},
month = {Thu Jul 13 00:00:00 EDT 2000}
}

Technical Report:

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